Finding the Fourth Proportional to 3,825,725.94, 5,279,697.27 and 2,171,988.99
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Solution
The fourth proportional to 3,825,725.94, 5,279,697.27 and 2,171,988.99 is: 2,997,455.78
Step by Step Solution
- Step 1: Write the proportion equation
3,825,725.94 : 5,279,697.27 = 2,171,988.99 : x - Step 2: Convert to fraction form
3,825,725.94/5,279,697.27 = 2,171,988.99/x - Step 3: Cross multiply
3,825,725.94x = 5,279,697.27 × 2,171,988.99 - Step 4: Simplify right side
3,825,725.94x = 11,467,444,340,973.06 - Step 5: Solve for x
x = 11,467,444,340,973.06/3,825,725.94 - Step 6: Final answer
x = 2,997,455.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.